Question
The average height of 18 students is 150 cm. If x more
students join whose average height is 165 cm, the class average becomes 153 cm. Find x.Solution
ATQ, 18 * 150 + x * 165 = (18 + x) * 153 2700 + 165x = (18 + x) * 153 165x – 153x = 2754 – 2700 12x = 54 x = 4.5
Who is the recipient of First Prof. P C Mahalanobis Award in Official Statistics for lifetime achievement?
Which is the new MSME scheme announced in the Union Budget 2023?
Which of the following is the largest city of Myanmar?
Who is the Chief Minister of Chhattisgarh, as of January 2023?
Which scientific phenomenon is responsible for the southwest monsoon?
___________ a Rashtrakuta chief overthrew his Chalukya overlord and performed a rimal called hiranya-garbha (literally, the golden womb).
Deepika starts her evening walk facing north and walks for 2 km. Then, she takes a right turn and walks for another 2 km. Finally, she takes a left turn...
Name the highest peak in Kerala.
Where was the Convocation Ceremony of the 146th course of the National Defence Academy (NDA) held on May 23, 2024?
Psyche is a NASA mission to study a metal-rich asteroid, it was launched from which Space Centre?
Relevant for Exams:
